Q: What are the prime factors of the number 151,424,040?

 A: 2, 3, 5, 79, 15973

Why are those the prime factors of the number 151,424,040?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 151,424,040

151,424,040
Factor Arrows
275,712,020
Factor Arrows
237,856,010
Factor Arrows
218,928,005
Factor Arrows
36,309,335
Factor Arrows
51,261,867
Factor Arrows
7915,973

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 79, 15973

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 79 x 15,973 = 151,424,040

This can also be written as 23 x 31 x 51 x 791 x 15,9731 = 151,424,040

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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